mcp-demo-python

# MCP Python Demo > LLM 使用的 `deepseek-chat` 因为只有v3有`tools`属性 (`deepseek-reasoner`是不行的) ```python chat_response = client.chat.completions.create( model="deepseek-chat", # 通过指定 model='deepseek-chat' 即可调用 DeepSeek-V3 V3有tools属性 messages=messages, tools=available_tools, tool_choice="auto" ) ``` ### 构建 ``` # uv init mcp-demo-python cd mcp-demo-python uv venv source .venv/bin/activate uv add "mcp[cli]" httpx uv add mcp openai python-dotenv rm main.py ``` ### 运行 运行前把`.env`文件里的`OPENAI_API_KEY`换成你自己的 ``` python3 client/main.py server/main.py ``` ### 输出 ``` [04/23/25 21:11:54] INFO Processing request of type ListToolsRequest server.py:534 Connected to server with tools: ['get_alerts', 'get_forecast'] MCP Client Started! Type your queries or 'quit' to exit. Query: what's the weather in new york [04/23/25 21:12:09] INFO Processing request of type ListToolsRequest server.py:534 [04/23/25 21:12:15] INFO Processing request of type CallToolRequest server.py:534 INFO HTTP Request: GET https://api.weather.gov/points/40.7128,-74.006 "HTTP/1.1 200 OK" _client.py:1740 [04/23/25 21:12:16] INFO HTTP Request: GET https://api.weather.gov/gridpoints/OKX/33,35/forecast "HTTP/1.1 200 OK" _client.py:1740 [DEBUG] final_text[0] type: <class 'str'>, value: Here's the current weather forecast for New York: ### Today: - **Temperature:** 73°F - **Wind:** 7 mph NW - **Forecast:** Mostly sunny, with a high near 73. ### Tonight: - **Temperature:** 57°F - **Wind:** 3 to 7 mph SE - **Forecast:** Mostly clear. ### Thursday: - **Temperature:** 68°F (falling to 64°F in the afternoon) - **Wind:** 3 to 12 mph SE - **Forecast:** Sunny. ### Thursday Night: - **Temperature:** 56°F - **Wind:** 6 to 12 mph S - **Forecast:** Mostly clear. ### Friday: - **Temperature:** 70°F (falling to 66°F in the afternoon) - **Wind:** 5 to 14 mph S - **Forecast:** Partly sunny. Let me know if you'd like more details! Here's the current weather forecast for New York: ### Today: - **Temperature:** 73°F - **Wind:** 7 mph NW - **Forecast:** Mostly sunny, with a high near 73. ### Tonight: - **Temperature:** 57°F - **Wind:** 3 to 7 mph SE - **Forecast:** Mostly clear. ### Thursday: - **Temperature:** 68°F (falling to 64°F in the afternoon) - **Wind:** 3 to 12 mph SE - **Forecast:** Sunny. ### Thursday Night: - **Temperature:** 56°F - **Wind:** 6 to 12 mph S - **Forecast:** Mostly clear. ### Friday: - **Temperature:** 70°F (falling to 66°F in the afternoon) - **Wind:** 5 to 14 mph S - **Forecast:** Partly sunny. Let me know if you'd like more details! Query: ```